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Root Root 2.1 OTA and retain 1.4 PRI

Discussion in 'Android Devices' started by Mr. Monkey, Aug 31, 2010.

  1. Mr. Monkey

    Mr. Monkey Well-Known Member
    Thread Starter
    16

    May 18, 2010
    85
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    16
    IT Tech
    Sandy, Utah
    So I just downgraded my 2.2 to 2.1 OTA. I do not want to used Unrevoked at all. So I am going to use this guide which is the same one I used to root my last 2.1.1.

    My question is... that guide uses an older PC36IMG that downgrades to 1.34 PRI, right? I'm trying to find a way that I can keep my 1.4 PRI that I have right now. Or maybe I am confused and my PRI wont be touched.

    Does anyone know how to keep my 1.4??

    ETA: Right now I am on 2.1.1 with 1.4 PRI.
     

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  2. Wile-E

    Wile-E Active Member
    16

    Aug 6, 2010
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    Chicago
    I just rooted this morning after updating to 1.4. I checked and still have 1.4 installed after rooting and flashing to Fresh 3.2
     
  3. Mr. Monkey

    Mr. Monkey Well-Known Member
    Thread Starter
    16

    May 18, 2010
    85
    6
    16
    IT Tech
    Sandy, Utah
    Did you use unrevoked forever?
     
  4. Wile-E

    Wile-E Active Member
    16

    Aug 6, 2010
    36
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    Chicago
    Yes. With the exception of a few difficulties/oddities, I it went smoothly.

    If you are interested, my trouble spots were as follows:

    1) The Win XP computer I was planning to use would not transfer the files to the SD card initially. It would say "0 bytes" Switched to a Win 7 pc and that solved that (I think it was due to the age of my XP system, not the OS itself)

    2) I did NOT need to toggle the airplane mode

    3) I forgot about the modified hboot drivers. Just needed to install.

    The video that is linked from the XDA instructions (How to Root the HTC EVO 4G with Froyo 2.2 [Video Walkthrough] | The Droid Demos )was immeasurably helpful, as well as all of the comments made here. I am deeply grateful to everyone who contributed to the effort, whether programing or through their experiences.
     
  5. pb2

    pb2 Member
    16

    May 18, 2010
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    How do you downgrade to 2.1?

    I have 2.2 on my HTC EVO (updated OTA) and need to go back to 2.1. This is primarily because 2.2 doesn't deal with client certificates properly and as a result I can no longer get my work e-mail.

    Thanks,
    PB
     
  6. Mr. Monkey

    Mr. Monkey Well-Known Member
    Thread Starter
    16

    May 18, 2010
    85
    6
    16
    IT Tech
    Sandy, Utah
    This guide will take you back to 2.1. Just go up until the part that explains to go to unrevoked.com.
     
  7. KewlKat007

    KewlKat007 Member
    15

    Jul 4, 2010
    19
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    15
    IT
    Boston, MA
    Hey guys I did root my phone using that guide Mr. Monkey posted but how do I know(currently running CM6) what number my PRI is? I know it doesn't show up in the settings of CM6.

    I remember updating the PRI and such before I did all this root stuff.
     
  8. Mr. Monkey

    Mr. Monkey Well-Known Member
    Thread Starter
    16

    May 18, 2010
    85
    6
    16
    IT Tech
    Sandy, Utah
    After rooting my phone I noticed it took me back to PRI 1.34. Not a huuuuge deal, but I thought if I could leave it at 1.4 it would be better.

    My guess is you're at 1.34 with me. I can't find it in settings either.
     
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